40221727 has 32 divisors (see below), whose sum is σ = 53419520. Its totient is φ = 29393280.

The previous prime is 40221691. The next prime is 40221737. The reversal of 40221727 is 72712204.

It is not a de Polignac number, because 40221727 - 2¹⁹ = 39697439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74077 + ... + 74617.

It is an arithmetic number, because the mean of its divisors is an integer number (1669360).

Almost surely, 2^40221727 is an apocalyptic number.

40221727 is a deficient number, since it is larger than the sum of its proper divisors (13197793).

40221727 is a wasteful number, since it uses less digits than its factorization.

40221727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 40221727 is about 6342.0601542401. The cubic root of 40221727 is about 342.6259383774.

The spelling of 40221727 in words is "forty million, two hundred twenty-one thousand, seven hundred twenty-seven".